These Sidecar Kits are built with the highest quality materials and craftsmanship. Its made to last a lifetime and can be used on multiple scooters. Durable materials assure secure attachment and safety for your co-pilot. The fiberglass tub is hand laid with two steel flat bars. We use over 30 pounds of resin in the tub alone making it stronger than just about any other fiberglass tub on the market. These sidecars can take anything the road can throw at them.